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Lap Length of Reinforcement Bars

December 30, 2018December 30, 2018 - by Kathir - Leave a Comment

Some amount of rebar is left for future construction. This extra rebar will be needed for tying bars of column. This extra length of rebar is called lap length. Lap …

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Concrete Mix ratio and Slump value of Concrete

December 23, 2018December 23, 2018 - by Kathir - Leave a Comment

Concrete Mix ratio of Different grades of Concrete at least till M20 grade of concrete Concrete Grade Mix Ratio M5 1:5:10 M7.5 1:4:8 M10 1:3:6 M15 1:2:4 M20 1:1.5:3 M25 …

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Purpose of Concealed Beam

December 21, 2018December 21, 2018 - by Kathir - Leave a Comment

Purpose of concealed beam are Clear the way for electromechanical duct work. Disperse loads on the supporting slab. Break a wide panel of slab to considerable size. Achieve maximum floor …

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What is Radius of Gyration

October 21, 2018 - by Kathir - Leave a Comment

If cross-sectional geometry of column is other than simple shapes like circle, square, rectangle etc. Then radius of gyration is required for the calculation of ultimate load that column can …

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How to Calculate Quantity of Cement, Sand & Aggregates for Slab

October 18, 2018 - by Kathir - Leave a Comment

Area of flat slab = 1000sq.ft = 93sq.m. The minimum thickness provided for slab is 150mm. (As per IS 456) 150mm = 0.15 metres Hence Wet volume = Area of …

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Strength and Stability of Structure

October 14, 2018 - by Kathir - Leave a Comment

A structure must be both strong and stable. If it is not strong it will break (or snap or crack or crush) and collapse. This can happen when the material …

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Lap Length for Reinforcement Bars

September 20, 2018 - by Kathir - Leave a Comment

During placing the steel in RC structure if the required length of a bar is not sufficiently available to make a design length then lapping is done. Lap length is …

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Spacing of Reinforcement Bars

September 17, 2018 - by Kathir - 2 Comments.

The horizontal distance between two parallel main bars shall not be less than the greatest of the following: Diameter of the bar if the bars are of same diameter. Diameter …

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